diff --git a/subprojects/update.ini b/subprojects/update.ini
new file mode 100644
index 0000000000..c5b62c864b
--- /dev/null
+++ b/subprojects/update.ini
@@ -0,0 +1,14 @@
+[NitroDWC]
+revision = main
+
+[NitroSDK]
+revision = main
+
+[NitroSystem]
+revision = main
+
+[NitroWiFi]
+revision = main
+
+[libvct]
+revision = main
diff --git a/subprojects/update.py b/subprojects/update.py
new file mode 100755
index 0000000000..592a07e8d4
--- /dev/null
+++ b/subprojects/update.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+
+from configparser import ConfigParser
+from subprocess import run
+from os.path import dirname, realpath, join
+
+def update_wrap(wrap, revision):
+    cfg = ConfigParser()
+    cfg.read(wrap)
+    git = cfg["wrap-git"]
+    url = git["url"]
+    cmd = run(["git", "ls-remote", url, revision],
+              check=True, capture_output=True)
+    rev = cmd.stdout.decode().split()[0]
+    print(" - Revision:", rev)
+    git["revision"] = rev
+    with open(wrap, "w") as f:
+        cfg.write(f)
+
+if __name__ == "__main__":
+    subprojects = dirname(realpath(__file__))
+    cfg = ConfigParser()
+    cfg.read(join(subprojects, "update.ini"))
+    for wrap in cfg.sections():
+        print("Updating:", wrap)
+        revision = cfg[wrap]["revision"]
+        update_wrap(join(subprojects, wrap + ".wrap"), revision)